The CPR Aquatic In-Tank Refugium, Large (CITR2LG) is a "safe house" that provides a protected area to help newly added fish or invertebrates easily acclimate to a new tank while also providing a place for injured fish or corals to regenerate damaged tissue without the need for a separate quarantine tank.

The CITR2LG also functions as a culturing area for small organisms that are intended to be provided as a food source for the inhabitants of the main portion of the tank. The versatility and easy use of the CITR2LG make it a valuable addition to every aquarist's tank.

The CITR2LG does NOT include a circulation pump. If you have ample circulation in your tank, you will not need a circulation pump. If you need extra circulation for your In-Tank Refugium you might want to purchase the CPR Aquatic In-Tank Refugium, Large Deluxe (CITR2LGDX) instead.